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shader: reuse prepared binding offsets and shared resource switch

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This commit is contained in:
nmzik
2026-10-14 04:46:46 +02:00
parent 7bba785963
commit 4cf5a96b79
1 changed files with 6 additions and 20 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterMemory.cpp
+6 -20
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@@ -288,7 +288,7 @@ uint32_t LoadSubwordInBounds(ValueEmitContext& ctx, const MemoryResourceAccess&
uint32_t LoadWordPrepared(ValueEmitContext& ctx, const IR::Inst& inst, const IR::MemoryInfo& mem,
const MemoryResourceAccess& resource) {
const auto index = DwordIndex(ctx, inst, mem);
const auto index = DwordIndex(ctx, inst, mem, resource.byte_offset);
return EmitValueOrZeroIfCondition(
ctx.state, EmitMemoryElementInBounds(ctx.state, resource, index),
[&]() { return LoadWordInBounds(ctx, resource, index); });
@@ -304,7 +304,7 @@ uint32_t LoadWord(ValueEmitContext& ctx, const IR::Inst& inst, IR::MemoryInfo me
uint32_t LoadSubwordPrepared(ValueEmitContext& ctx, const IR::Inst& inst, const IR::MemoryInfo& mem,
const MemoryResourceAccess& resource, uint32_t bits,
bool sign_extend) {
const auto address = ByteAddress(ctx, inst, mem);
const auto address = ByteAddress(ctx, inst, mem, resource.byte_offset);
const auto index = Binary(
ctx.state, spv::OpShiftRightLogical, TypeU32(ctx.state), address,
ConstantU32(ctx.state, std::countr_zero(resource.element_bits / 8u)));
@@ -466,7 +466,7 @@ void StoreSubwordInBounds(ValueEmitContext& ctx, const IR::MemoryInfo& mem,
void StoreSubwordPrepared(ValueEmitContext& ctx, const IR::Inst& inst, const IR::MemoryInfo& mem,
const MemoryResourceAccess& resource, uint32_t bits, uint32_t data) {
const auto address = ByteAddress(ctx, inst, mem);
const auto address = ByteAddress(ctx, inst, mem, resource.byte_offset);
const auto index = Binary(
ctx.state, spv::OpShiftRightLogical, TypeU32(ctx.state), address,
ConstantU32(ctx.state, std::countr_zero(resource.element_bits / 8u)));
@@ -603,22 +603,8 @@ void StoreWord(ValueEmitContext& ctx, const IR::Inst& inst, IR::MemoryInfo mem)
});
return;
}
const auto merge = state.builder.AllocateId();
std::vector<uint32_t> labels(buffer.indirect_resources.size());
std::vector<uint32_t> branches {spv::OpSwitch, selected, merge};
for (uint32_t i = 0; i < labels.size(); ++i) {
labels[i] = state.builder.AllocateId();
branches.push_back(i);
branches.push_back(labels[i]);
}
state.builder.AddFunction(spv::OpSelectionMerge, merge, spv::SelectionControlMaskNone);
state.builder.AddFunction(branches);
for (uint32_t i = 0; i < labels.size(); ++i) {
EmitLabel(state, labels[i]);
store(buffer.indirect_resources[i]);
state.builder.AddFunction(spv::OpBranch, merge);
}
EmitLabel(state, merge);
EmitIndexSwitch(state, selected, buffer.indirect_resources.size(), 0u,
[&](uint32_t item) { store(buffer.indirect_resources[item]); });
});
}
@@ -681,7 +667,7 @@ PreparedFormattedMemory PrepareFormattedMemory(ValueEmitContext& ctx, const IR::
PreparedFormattedMemory plan;
plan.info = info;
plan.resource = resource;
const auto start = ByteAddress(ctx, inst, mem);
const auto start = ByteAddress(ctx, inst, mem, resource.byte_offset);
// Check the whole, unaligned format span before aligning the actual memory address.
const auto end = Binary(ctx.state, spv::OpIAdd, TypeU32(ctx.state), start,
ConstantU32(ctx.state, info.byte_size - 1u));